ELECTRICAL PROJECTS USING MATLAB/SIMULINK Gmail: asokatechnologies@gmail.com, Website: http://www.asokatechnologies.in
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A 500-W Wireless Charging System with Lightweight PickUp for Unmanned Aerial Vehicles ABSTRACT: This letter develops a wireless charging system based on a novel orthogonal magnetic structure and primary-side power control to simplify the structure and reduce the weight of on-board pickup for recharging the unmanned aerial vehicles (UAVs). The novel magnetic structure has a polarized transmitter with a flat U-type core and a perpendicular air-cored receiving coil, guaranteeing the magnetic flux operation space away from UAV body by coil structure itself and also reducing the weight of magnetic receiver. The power flow to the battery is controlled by the primary-side based on charging current and voltage feedback by pick-up. Simulations based on ANSYS Maxwell and experiments are carried out to validate the proposal. The weight of magnetic receiver is 130g. And the system can deliver 500W with a DC-to-Battery efficiency of 90.8%, meanwhile 10A constant current/50V constant voltage charging for 12S lithium-ion battery is achieved by the closed-loop system.
KEYWORDS: 1. Unmanned aerial vehicles (UAVs) 2. Wireless charging 3. Magnetic structure 4. Primary-side control
SOFTWARE: MATLAB/SIMULINK
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ELECTRICAL PROJECTS USING MATLAB/SIMULINK Gmail: asokatechnologies@gmail.com, Website: http://www.asokatechnologies.in
0-9347143789/9949240245 CIRCUIT DIAGRAM:
Fig. 1. (a) Wireless charging system structure. (b) The gate drive signals and output voltage of the inverter. (c) Equivalent circuit model.
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ELECTRICAL PROJECTS USING MATLAB/SIMULINK Gmail: asokatechnologies@gmail.com, Website: http://www.asokatechnologies.in
0-9347143789/9949240245 EXPERIMENTAL RESULTS:
Fig. 2. Power transfer ability test. (a) Measured waveforms of system, (b) Input and output power test.
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ELECTRICAL PROJECTS USING MATLAB/SIMULINK Gmail: asokatechnologies@gmail.com, Website: http://www.asokatechnologies.in
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Fig. 3. Closed-loop system operation test. (a) Change the equivalent load resistance RB from 3 to 33 . (b) Change the equivalent load resistance RB from 3 to 8
CONCLUSION: A novel orthogonal magnetic structure, which has a lightweight magnetic receiver, for UAVs, has been proposed and verified throughout this letter. The air-cored receiving coil is placed vertically in the middle of a polarized transmitter, possessing a large magnetic flux captured surface for enough power transfer and also constraining magnetic field operation space away For Simulation Results of the project Contact Us
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0-9347143789/9949240245
ELECTRICAL PROJECTS USING MATLAB/SIMULINK Gmail: asokatechnologies@gmail.com, Website: http://www.asokatechnologies.in
0-9347143789/9949240245 from UAV’s body by coil-structure itself. The primary-side power control method is adopted to regulate the power flow to battery, which further reduces the weight of on-board pick-up circuit. A prototype was built for experiment. It is shown that the system can successfully deliver 500W to UAV with a DC-to-Battery efficiency of 90.8%. The simulation and experimental results confirm the effectiveness of the proposal.
REFERENCES: [1] T. Kan, R. Mai, P. P. Mercier and C. C. Mi, “Design and Analysis of a Three-Phase Wireless Charging System for Lightweight Autonomous Underwater Vehicles,” IEEE Trans. Power Electron., vol. 33, no. 8, pp. 6622-6632, Aug. 2018. [2] M. Budhia, J. T. Boys, G. A. Covic and C. Huang, “Development of a Single-Sided Flux Magnetic Coupler for Electric Vehicle IPT Charging Systems,” IEEE Trans. Ind. Electron., vol. 60, no. 1, pp. 318-328, Jan. 2013. [3] P. Si, A. P. Hu, S. Malpas and D. Budgett, “A Frequency Control Method for Regulating Wireless Power to Implantable Devices,” IEEE Trans. Biomed. Circuits Syst., vol. 2, no. 1, pp. 22-29, Mar. 2008. [4] A. B. Junaid, Y. Lee, Y. Kim, “Design and implementation of autonomous wireless charging station for rotary-wing UAVs,” Aerospace Science and Technology, vol. 54, pp. 253-266, Apr. 2016. [5] S. Kumar, Jayprakash, G. K. Mandavi, “Wireless Power Transfer for Unmanned Aerial Vehicle (UAV) Charging,” International Research Journal of Engineering and Technology, vol. 4, no. 8, pp. 1939-1942, Aug. 2017.
For Simulation Results of the project Contact Us
Gmail: asokatechnologies@gmail.com, Website: http://www.asokatechnologies.in
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